Title: Nanoscale calcium bismuth mixed oxide with enhanced photocatalytic performance under visible light
Authors : Solarska, Renata
Heel, Andre
Ropka, Joanna
Braun, Artur
Holzer, Lorenz
Ye, Jinhua
Graule, Thomas
Published in : Applied Catalysis A : General
Volume(Issue) : 382
Issue : 2
Pages : 190
Pages to: 196
Publisher / Ed. Institution : Elsevier BV
Issue Date: 2010
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Map
Subject (DDC) : 540: Chemistry
620.11: Engineering materials
Abstract: The objective of materials research is the development of economical, safe and efficient synthesis routes that lead to the formation of a photocatalyst which is able to overcome performance problems related to particle size, crystallinity, or low surface area. Here, we report high-quality functional nanoparticles of calcium bismuth mixed oxide with 15 nm nominal size corresponding to a specific surface area of 41 m2/g which were produced by single-step flame spray synthesis (FSS). The high temperature of the flame afforded creation of oxygen vacancies which were quantified by near edge X-ray absorption fine structure (NEXAFS) spectra. These two parameters, developed active surface area and created in the flame oxygen vacancies, allowed to enhance the photocatalytic activity of calcium bismuth oxide by a factor of 6, in comparison to previously reported calcium bismuth mixed oxide produced by conventional methods which required additional temperature treatment steps.
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Institute of Materials and Process Engineering (IMPE)
Publication type: Article in scientific Journal
DOI : 10.1016/j.apcata.2010.04.043
ISSN: 0926-860X
URI: https://digitalcollection.zhaw.ch/handle/11475/2189
Appears in Collections:Publikationen School of Engineering

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